baber/WOPTO huggingface dataset:
Patent GB-1073148-A (GB)
Title: Improvements in or relating to thread winding devices
Inventor: GERHARDT WOLFGANG
IPC: B65H67/04
Filed: 1964-09-29
Abstract: 1,073,148. Winding yarns. INSTITUT FUR TEXTILMASCHINEN. Sept. 29, 1964, No. 39653/64. Heading DIJ. A machine for continuously winding thread 25, Fig. 2, on drum driven bobbins comprises a rotatable holder 1 carrying at least three bobbins 4, 4a, 4b distributed around its periphery, the arrangement being such that when one bobbin 4 is fully wound with a package 26 the holder 1 is advanced by a first step, Fig. 3 (not shown), so that the next empty bobbin 4a is brought into engagement with the drum 10 whilst the package 26 is still in engagement with the drum 10, and then by a second step Fig. 4 (not shown) that removes the package 26 from the drum 10 whilst keeping the bobbin 4a in engagement therewith. Each bobbin holder (2), Fig. 7 (not shown), is associated with a storage ring (27) and each bobbin 4 is formed with a thread gripping slot (31). When a package 26 is completed the thread 25 is removed from a main traversing guide (29) and placed in an auxiliary guide (30) that lays the thread on the storage ring (27) associated with the next bobbin 4a, to be wound. The thread 25 is subsequently transferred by the auxiliary guide (30) back to the main guide (29) and in this manner the thread is caught up in the slot (31) and winding commences on the new bobbin 4a.
Patent GB-1175313-A (GB)
Title: Stainless Steel Fourdrinier Cloth.
Inventor: HODGSON JOHN BONAR
IPC: D21F1/10
Filed: 1968-08-20
Abstract: 1,175,313. Fourdrinier screen. JOHNSON WIRE WORKS Ltd. 20 Aug., 1968, No. 39733/ 68. Heading D1K. A papermaker's wire screen is woven from a warp of austenitic stainless steel wires which are flat on the top and bottom, and weft of low-carbon stainless steel wires of circular cross section.
Patent GB-1366892-A (GB)
Title: Methods of making semiconductor devices
IPC: H01L27/00
Filed: 1971-08-25
Abstract: 1366892 Semi-conductor devices WESTERN ELECTRIC CO Inc 25 Aug 1971 [26 Aug 1970] 39786/71 Heading H1K Openings are provided in an otherwise continuous dopant-containing layer 88, e.. of silicon oxide, on a semi-conductor body, another layer 89 is formed thereon and the dopant, e.g. B for a PSi body as shown, is diffused from the layer 88 into the body. In the arrangement shown this produces a graded P<SP>+</SP> surface layer in the body. The openings in the layer 88 are used to define areas of the semi-conductor surface into which another dopant is introduced. In Fig. 11 this other dopant, which may be P, diffuses from the doped oxide layer 89 at the same time as the diffusion from the layer 88, thereby forming N<SP>+</SP> regions 82, 83, the former region being annular and surrounding the latter. The layer 89 is then removed using an etchant which preferentially attacks it, and the openings in the layer 88 and further openings made therein are used to provide access for emitter, base and collector electrodes. The collector region of the transistor thus formed is constituted by the annular region 82 and the depletion region associated with the P-N junction between the region 82 and the lower P- portion of the body. The depletion region extends laterally across the entire area enclosed by the region 82 without extending significantly upwards into the more heavily-doped P<SP>+</SP> surface layer. In an alternative method (Figs. 1-6, not shown) the upper layer (61) which covers the apertured B-doped oxide layer (51) during diffusion from the latter into a P-type epitaxial layer (44) on a P-type substrate (41) is of a relatively easily-etchable material such as silicon nitride or aluminium oxide, and is etched away after the B diffusion stage to permit P to be introduced through the apertures in the layer (51) by ion implantation or by diffusion either from the gas phase or from a second doped oxide layer. In this arrangement P-type islands isolated from each other and from the substrate (41) by buried N<SP>+</SP> regions (42, 43) and diffused or ion implanted N<SP>+</SP> zones (46, 48) extending down to the buried layers through the epitaxial layer (44) contain components such as transistors and resistors.
Patent GB-1405137-A (GB)
Title: Fuel supply system for an internal combustion engine
IPC: F15C1/00
Filed: 1972-08-29
Abstract: 1405137 Fluid regulation MIKUNI KOGYO CO Ltd 29 Aug 1972 40066/72 Heading G3H [Also in Divisions F1 and G4] A fuel supply system for an I.C. engine comprises an impact modulator type fluid amplifier and consists of a fuel injection element, for mounting in the inlet manifold, having two nozzles oppositely disposed on a common axis, one nozzel 15 providing a compressed air jet and the other nozzle 14 providing a fuel jet, the two jets colliding to produce atomization of the fuel, a normal running stage in which an output, corresponding to engine speed, in the form of an air pulse signal controls the output of the compressed air jet nozzle in the injection element and a mixed air supply stage in which the supply of fuel and air to said fuel injection element is controlled by a control valve actuated in response to the inlet manifold pressure. Normal Running stage produces a train of pulses and consists of a disc 40 driven at engine speed and having two apertures 43, 44 at different radii. Air from a pump 20 is supplied to two nozzles 45, 46. Pulses of air from nozzle 45 enter a pipe 47 and are supplied directly to one control nozzle 49 of a bi-stable fluid amplifier element 41 and through a delay element 53 to the other control nozzle 54 of element 41. Pulses received by pipe 48 are fed directly to control nozzle 61 of a collision type fluid amplifier 42. The combined effect of the direct input to nozzle 61 and the input to nozzle 62 from the bi-stable element 41 is to produce an output pulse from nozzle 55 having a time width in inverse proportion to engine speed. This pulse produces an output from element 42 which is fed to control nozzle 16 of fuel injection element IE. In a modification, Fig. 25 (not shown), the impact modulator 42 is replaced by a bi-stable fluid amplifier (42c) which provides an ON-OFF control of the air supply to control nozzle 16. In a second modification Fig. 26 a bi-stable fluid amplifier 42d, corresponding to amplifier (42c) of Fig. 25, produces a pulse at the control nozzle of an impact type modulator 42b, both opposed nozzles 55 and 56 of which are fed with air. When no control pulse is present, modulator 42b produces an output to a bias setting element 57 and a summing impact modulator IE.SIM.
Patent GB-1314251-A (GB)
Title: Magnetic rod game equipment
IPC: A63F3/00
Filed: 1970-08-20
Abstract: 1314251 Magnetic game R B KLAMER 20 Aug 1970 [20 Feb 1970] 40136/70 Heading A6H Apparatus for playing a game comprises a device including a handle member 10, a rod 16 pivotally attached to the handle and having a magnet 22 affixed thereto at one end and a gameboard to which the magnet is attracted as the rod device is passed over the gameboard, the gameboard being of laminated construction and including a sheet of metal, to which the magnet is attracted, sandwiched below the playing surface of the board. The rod device is described and claimed in Specification 1314252.
Patent GB-1235338-A (GB)
Title: Improvements in or relating to melt spinning assemblies
Inventor: PIERCE NORWIN CALEY
IPC: B29C48/05
Filed: 1968-08-22
Abstract: 1,235,338. Spinnerets. E. I. DU PONT DE NEMOURS & CO. 22 Aug., 1968 [29 Aug., 1967], No. 40278/68. Heading B5B. In melt-spinning, the molten polymer is passed through the filter-holder at initial temperatures within a temperature range below that at which significant polymer degradation will occur, passed into a plurality of passages each of which leads to a different spinning capillary in the spinning plate and has an entrance temperature within said initial temperature range, the spinning plate being heated to increase the temperature along the passage from said temperature at the entrance to a temperature at least 60 C. higher at the spinning capillary, and the polymer extruded from the spinning capillary after a maximum of 4 seconds of travel through the heated passage. Preferably, the inherent viscosity of the polymer before melting, determined at 25 C. in a 25/75 vol./vol. mixture of trifluoroacetic acid and methylene chloride is 0À85 or greater. In operation of the spinning assembly shown, molten polymer supplied to inlet part 22 is distributed equally by channels 24 to the top of cavity 26, and after filtration passes via channels 28 to distribution space 32. Temperature conditions are such that the temperature of the molten polymer in the distribution space 32 is essentially the same as that of the adjacent metal. The melt at this temperature is then forced into the top-plate ends 48 of the inserts 46 for spinning through capillaries 50. The lower plate 38, heating plate 36 and the lower portions of insert 46 are heated by electrical heater 40 to a temperature at least 60 C. higher than that of the melt supplied. Because of the insulation effects of the air space between the plates, very little of this heat reaches top plate 34, which remains essentially at the same temperature as the melt. Owing to the resulting temperature difference, the poor heat transfer characteristics of the polymer, and the very short time that the polymer stays in contact with the high temperature portions of insert 46, a steep temperature gradient is given to the polymer flowing through each insert 46. Hence the method is useful spinning polymers having high melt viscosities without polymer degradation and with reduced orientation of the polymer in the spun yarn. Examples illustrate the spinning of polyester filaments.
Patent GB-902932-A (GB)
Title: Production of metal particles and of articles therefrom
IPC: C22C32/00
Filed: 1958-12-15
Abstract: Finely-divided particles of one or more of the metals Ni, Co, Fe, Cu, Zn, Cr, Mo, V, Mn, Nb, Ta, W, Be, Ag, Pb, Bi, Au having intimately dispersed therein an oxide of at least one element selected from Si, Mg, Ca, Ba, U, B, Al, Cr, Ti, Zr, Hf, Th, are produced by oxidizing an atomized solution of a mixture of salts of the corresponding elements in an oxidizing flame and reducing the resultant mixed oxides or mixed crystal with a reducing gas, e.g. hydrogen.  The oxide may form 0.1-20% of the product and shaped articles may be produced by pressing and sintering the product or by pressing the oxides, reducing them and then sintering.
Patent GB-930281-A (GB)
Title: Improvements in or relating to hot water heaters and means for inhibiting scale deposition thereon
Inventor: CROSS JOHN T
IPC: F24H9/00
Filed: 1961-11-13
Abstract: 930,281. Preventing incrustation. WHIRLPOOL CORPORATION. Nov. 13, 1961, No. 40551/61. Class 123 (1). A hot-water heater equipped with means for preventing the formation of calcareous scale internally on the heated surfaces comprises a tank 15 having an inert but thermally and electrically conductive liner 25 covering at least part of the inner surface o the heated part of the tank and connected electrically so that a direct electric current may flow through the water in the tank from the liner to electrodes 41 spaced from the liner. As shown a burner 19 is mounted below the bottom cover 13 of the heater tank and a thermo-electric power source 34 is positioned so as to be operated by the heat from the burner. Minimum and optimum current densities are given as 0.8 and 1.5 milliamperes per square inch of electrode area respectively. The flow of current causes scale to form on the electrodes 41 rather than on the heated surfaces. A double-pole, double-throw switch 30 is included in the wiring to provide means for reversing the current, thereby causing the scale to flake off and drop from the electrodes 41. These particles of scale may be flushed out through a bottom outlet 22 controlled by a valve 23. The liner which may be of graphite or platinum is cemented to the tank wall by a dielectric cement and the connections to the liner and electrodes pass through suitable insulating bushings 28 and 40 respectively.
Patent GB-958180-A (GB)
Title: New and improved polyvinyl chloride fibres
IPC: D01F6/08
Filed: 1962-10-26
Abstract: 958,180. Polyvinyl chloride filaments. SOC. RHOVYL. Oct. 26, 1962 [Nov. 7, 1961], No. 40646/62. Heading B5B. Polyvinyl chloride filaments having a break ing strength of more than 2 g/den., and a shrinkage of less than 10% in boiling water or in trichlorethylene at 40 C., are made by spinning a polyvinyl chloride solution having an AFNOR index of at least 450 and stretching and heat-setting the resulting filaments. Preferably the polyvinyl chloride is obtained by polymerization of vinyl chloride at below 0 C. The AFNOR index is determined in cyclohexanone at 25  C. according to a standard method. Filaments may be made by dryspinning or by wet-spinning, suitably by wet-spinning a solution in dimethyl formamide into an aqueous solution of dimethyl formamide of sufficient water content to coagulate the filaments, or by dry-spinning a solution in cyclohexanone. Heat-relaxation of the filaments may be carried out before and/or after the heatsetting step. Stretching and other heat-treatments of the filaments may be effected in oil, air or other inert gaseous or liquid medium, or in contact with a hot surface. Stretching may be effected at 100-150 C. e.g. at ratios of 1: 5 or 1: 12, followed by heat-setting under tension at up to 170 C. Heat-relaxation of up to 30% shrinkage may then be carried out to reduce the sensitivity of the filaments to heat and to solvents, e.g. relaxation at 130 C. permitting shrinkage of 20%.
Patent GB-1224803-A (GB)
Title: Semiconductor devices
IPC: H01L21/762
Filed: 1968-02-26
Abstract: 1,224,803. Semi-conductor devices. SONY CORP. 26 Feb., 1968 [1 March, 1967 (5)], No. 40776/70. Divided out of 1,224,801. Heading HlK. The subject-matter of this Specification is entirely contained in Specification 1,224,801 but the claims relate to a semi-conductor device comprising a support having a recess in a surface thereof with two sequentially vapour grown semi-conductor layers in said recess lying parallel to its sides and bottom, with semiconductor material filling the portion of the recess surrounded by the layers. The effective width of at least one of the layers at its exposed cross-section at the support surface is greater than the thickness of the bottom portion of that layer in order to facilitate attachment of an electrode thereto.
Patent GB-1498539-A (GB)
Title: Method of clay beneficiating
IPC: B02C17/16
Filed: 1975-10-06
Abstract: 1498539 Beneficiating clay YARA ENG CORP 6 Oct 1975 [11 Nov 1974] 40786/75 Heading C1A Clay is beneficiated by subjecting an aqueous slurry containing from 10 to 60% by wt. of clay to a grinding operation using a grinder operating at 200 to 800 r.p.m. containing a finely divided grinding medium having a density higher than clay of particle size 325 to 40 Tyler-mesh the volume ratio of clay to grinding medium in the grinder being in the ratio of 1À5:1 to 1:1À5 and recovering the ground clay from the grinder. The grinding medium may be glass spheres. A preferred volume of grinder is of sufficient volume to contain 5500 cc. of medium and 5500 cc. of aqueous clay suspension with a flow rate of 100 to 400 cc./min. in which the grinding speed is 600 r.p.m. Suitable apparatus for the beneficiation of clay forms the subject matter of (see Division B2) Specification 1,498,540.
Patent GB-1261714-A (GB)
Title: Hand trucks
Inventor: SMITH JOHN HENRY
IPC: B62B1/14
Filed: 1968-03-02
Abstract: 1,261,714. Brick truck. J. H. SMITH. 3 March, 1969 [2 March, 1968; 18 Sept., 1968], Nos. 10272/68 and 41077/68. Heading B7B. Two angled-plate members 4 of a brick truck are connected at their upper ends by a strap 31 or a U-shaped handle and at their lower ends one is secured to the wheeled axle and the other is movable transversely of the truck by a handle-operated link or cable mechanism so that the forward projections 10 of the members 4 grip the lowermost bricks in a stack for transporting them. The projections 10 may be adjustable relative to the members 4.
Patent GB-1378559-A (GB)
Title: Devices for handling heavy or cumbersome objects
IPC: B62B5/00
Filed: 1973-09-04
Abstract: 1378559 Trollies for heavy loads BRABY GROUP Ltd 4 Sept 1973 [5 Sept 1972] 41120/72 Heading B7B A trolley for heavy loads, such as a storage heater, comprises an inverted channel section support platform 10, wheels 13 adjacent each end of the platform, and a towing bar 16 which is longitudinally movable between a stowed position in which a handle 17 is adjacent and obscures the wheels at one end of the trolley and an extended position in which the tow bar can pivot about an end portion of the frame. The limbs of the U-shaped tow bar are guided at 10c between the horizontal and vertical parts, of the platform and are inturned at their free ends 16b. The plastics handle 17 is freely mounted on the tow bar. On extending the tow bar the inturned portions abut a downturned front flange 10b thus allowing pivotal movement. Further wheels 14 may be placed between the end wheels and non-slip pads 11 may be provided on the platform.
Patent GB-1192020-A (GB)
Title: Process for Polymerizing Vinyl Fluoride
Inventor: WOLINSKI LEON EDWARD
IPC: C08J3/09
Filed: 1967-09-08
Abstract: 1,192,020. Vinyl fluoride polymer organosol. E. I. DU PONT DE NEMOURS & CO. 8 Sept., 1967 [9 Sept., 1966; 17 May, 1967], No. 41146/67. Heading C3P. A stable organosol for forming into shaped structures comprising dimethyl sulphoxide, vinyl fluoride homopolymer and/or copolymer and water, the weight ratio of dimethyl sulphoxide to water being in the range 98/2 to 15/85 may be prepared by polymerizing vinyl fluoride monomer with or without comonomer(s) at 55‹ to 140‹ C. and 1000 to 15000 p.s.i. gauge in aqueous dimethyl sulphoxide of which water constitutes up to 85% by weight based on the combined weight of water and dimethyl sulphoxide. Suitable initiators are benzoyl peroxide, α,α<SP>1</SP>- azobis-isobutyronitrile, N 2 F 2 .NF 3  and 2,2<SP>1</SP>-diguanyl<SP> </SP>- 2,2<SP>1</SP>- azopropane dihydro - chloride. In comparative examples dimethyl acetamide, butyrolactone, N-methyl pyrrolidone and dimethyl formamide are used. In examples the comonomers used were vinyl pivalate, 1,1,9- trihydroperfluorononyl acrylate and vinyl butyrate.
Patent GB-1361450-A (GB)
Title: Automatic gas burner apparatus
IPC: F23C/
Filed: 1971-09-03
Abstract: 1361450 Automatic gas burner apparatus REMEHA FABRIEKEN NV 3 Sept 1971 [7 Sept 1970] 41152/71 Heading F4T An automatic gas burning apparatus comprises a plurality of burners 1 fed in parallel by a supply conduit 7 and pipe 4, there being located in the main conduit 7 a manually operated valve 6, a filter 10, a pressure control 17, a main valve 20 with on/off operation and a further valve 23 with high/low/off operation while two pressure sensitive switches 19 and 28 responsive to too low and too high gas pressure respectively are connected to the conduit 7 by branch tubes; a branch conduit 30 branching from the conduit 7 downstream of the valve 20 and leading via an ignition gas valve 13 and pressure control 12 to an ignition burner 15 ignited by a spark igniter 33; and a vacuum pump 25 located in a by-pass 24 and a vacuum responsive switch 22 located in a conduit 21 branching from the inlet of valve 23 for testing whether valves 13, 20 and 23 are sealed. Ionization electrodes 31 and 32 are located at the first and last burners. After the vacuum test for the valves 13, 20, 23 which may last one minute, valve 20 opens and after fifty seconds valve 13 also opens. The ignition burner 15 is ignited and if the electrode 31 is sufficiently energized valve 23 opens first to the low position and afterwards to its high position if necessary.
Patent GB-1018263-A (GB)
Title: Process for the purification of organic solvents used in the polymerization of olefins and of unsaturated olefinic compounds with metallo-organic catalysts
Inventor: KNOTHE WOLFGANG
IPC: C08F110/02
Filed: 1962-10-31
Abstract: Organic solvents, e.g. light benzine, used in the polymerization of olefines and unsaturated olefinic compounds with organometallic catalysts, are, prior to use, subjected to intensive mixing with freshly prepared olefin polymers, and then separated therefrom.  The polymer may be the suspension obtained in the polymerization process.
Patent GB-934887-A (GB)
Title: Device for stepwise speed control of low-speed change-speed gears
IPC: B23Q5/14
Filed: 1960-12-01
Abstract: 934,887. Change speed control. ZAVODY PRESNEHO STROJIRENSTRI GOTTWALDOV NARODNI PODNIK. Dec. 1, 1960 [Dec. 18, 1959], No. 41432/60. Class 80 (2). A change speed control for low speed gears used for driving the feed mechanism in machine tools comprises a shift rod 4 fast with the armature 5 of twin electromagnets 1, 1<SP>1</SP> which are selectively connected by a change-over switch 7 either to parallel preselector switches 12, 12<SP>1</SP> or to parallel programme control switches 8, 8<SP>1</SP>. For a preselected shift the change-over switch 7 is positioned so that contacts 11, 11<SP>1</SP>, 17 are closed and one (e.g. 12) of the two preselector switches 12, 12<SP>1</SP> is closed to preselect a ratio which is established by closing a pushbutton operated switch 18 to energize a relay 13 which closes a switch 13a to complete the circuit from the electromagnet 1 through contacts 3, 11, 12, 13a and a relay 9. The resistance of the relay 9 is such that the current in the circuit is too weak to effect the shift, but energization of the relay closes switches 9a, 9b to respectively energize a relay 10 and to maintain the relay 13 energized after the pushbutton switch 18 is opened. The relay 10 closes switches 10a, 10b, the latter bridging the relay 9 and providing an increase of current to the electromagnet 1 which moves the armature 5 and rod 4 left to establish the selected ratio. The leftward movement of the rod 4 opens the switch 3 and closes 3<SP>1</SP>, the former breaking the previously energized circuit and all the relays return to their initial positions. Condensers 14, 16 in parallel with the relays 10, 13 and a resistor 15 in series with the relay 10, delay the de-energization of the relays 10, 13. If the gear teeth are not positioned for precise engagement and prevent establishment of the preselected ratio during the period of increased current, the delayed de-energization of the relay 13 keeps the contact 13a closed after the relay 10 is de-energized and the contacts 10a, 10b open, whereupon a weak current in the circuit re-energizes the relay 9 and the cycle is repeated until the shift is established. For a programme shift the change-over switch 7 is positioned to close contacts 6, 6<SP>1</SP> and open contacts 11, 11<SP>1</SP>, 17. Closure of one of the switches 8, 8<SP>1</SP> (e.g. 8) completes the circuit from the electromagnet 1 through the contacts 3, 6, 8 and relay 9, the latter of which is energized to close the contact 9a and energize relay 10 which in turn closes the contact 10b to bridge the relay 9 and provide an increased current to the electromagnet 1 which establishes the shift. If the shift is not completed during the period of increased current the cycle is repeated until the shift is established.